Derivative Instruments and Hedging Activities - Narrative (Details) - USD ($) $ in Millions |
Mar. 31, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Derivative Instruments and Hedging Activities Disclosure [Abstract] | ||
| Cash collateral placed with counterparties | $ 13 | $ 4 |
| Noncash collateral placed with counterparties | 290 | $ 328 |
| Cash collateral received from counterparties | $ 3 |